Window screen for closed automobiles



Sept. 15, 1931. F.-P. PRAWALSKY WINDOW SCREEN FOR CLOSED AUTOMOBILES Original Filed Feb. 5 9

-5700750/ [D /awards? Patented Sept. 15, 1931 UNI-TEDYSTAI'TES PATENT OFFICE,

rnnnnrcx r. rnawansxr, or SWANVILLE, MINNESOTA;

or SAID rnnnnrcx r. PRAWALSKY, DECEASED, nssrenon, BY

MINISTRATBIX MARTHA PRAWALSKY, AD-

DIREGI. AND KESNE ASSIGNMENTS, OF ONE-THIRD TO PETER P. TYVOLL, OF MIN- MINNESOTA HOWARD L. FISCHER OF ST. PAUL,

WQTDOW SCREEN FOR CLOSED AUTQMOBILES Application filed, February 5, 1924, Seria1 No. 690,750. Renewed March 29 1926.

pose to provide a rolling window screen mp eluding guides which .may be either constructed in the window frame during the i 5 construction of the automobile body or a X plied thereto subsequently, the screen to constructed from a relatively closely woven fabric, either metal or silk, such as will permit theair to enter and yet preclude small zoparticles, such as grains of sand or the like, as well asinsects, such as flies, bugs and mosquitoes. v I Another purpose is to provide a rolling screencarried by\a tensioned roller operatively mounted in a cylinder carried atthe upper ends of the side guides, with a longitudinal slot topermit of the screen being easily raised or lowered, the lower end of the screen having a suitable bar operatively mounted in guides which are arranged in the jambs of the window frame, there being means in the guides for retaining the bar or rod at the lower end of the screen in different positions. I

Still another purpose is to provide a rolling screen for this purpose which may be manufactured at a relatively low cost and soldat a reasonable profit, it being obvious that the guides may be constructed in the and cord now used on each side of the win-' atly troubled with insects,

i'fThe invention comprises and combinations of parts to be hereinafter ing screen applie jambs of the window frame during the con-.

the present inven-- dow for operating a silk curtain. It is also obvious that the guides may be constructed separately from the cylinder and screwed in the window casing or jamb and the cylinder subsequently attached.

further features set forth, shown in the drawings and claimed. 4

In the drawings:

Figure 1 is a view in perspective of a ortion of a sedan of coup body, showing the window casing or frame with the rollin accordance with the invention, showing the screen lowered.

Figure 2 is a vertical sectional view the same on line 22 of Figure 1, showing the screen raised.

Figure 3 is a transverse sectional view on line 3-3 of Figure 1, showing the transverse rod or bar at the lower end of the screen engaged with the guides.

Figure 4 IS a lon 'tudinal sectional view through the cylin er at the top of the guides.

Referring to the window casing or frame andmounted in the channels 2 of the jambs of the window frame or casi are guides 3. The lower ends of the guides extend to and are connected with the cross member 4 which forms the window sill through which the window-pane 30 extends and is adapted to slide between the sides of the guides 3 in the channels 2. The window-pane 30 is adapted to be raised and lowered through the member 4 in the ordinary well known manner and I have not illustrated the means for raising and lowering the window in the drawings, only a portion of the window-pane is'illustrated. The guides are U- shaped in cross section and outstanding from certain of the walls of the guides are flanges 5 whichhave notches 6. The notches are U- haped and are directed inwardly and downwardly of the closed body of the autothe drawings, 1 designates v upperfends 50fthe guides terminate in cars 9 conforming to the cylindrical contour of the cylinder for the purpose of receiving themaking the automobile body or to permit them to be attached subsequently. In the former case, the guides and the cylindermay be mounted in the window frame at one the cylinder attached to the time, that i guides. In t e latter case, the cylinder may be first positioned at the top of the window frame or casingand the guides subsequently secured in place by the screws and then their lugs or ears screwsQ The cylinder is closed at one end, as shown at 11, and secured to the other open end 12- is a cross bar 13. The cross bar is fastened to the cylinder by screws or the like 14. The closed end 11 of the cylinder has a hearing 15 for the pintle 16 of a roller 17 while the cross bar 13 is provided with a bearing for the other pintle 18 of the roller.

Mounted in one end of the cylinder is a spiral spring 19, one bent end thereof being attached in a slot 20 of the cylinder, the other end bei attached at 21 to the pintle 18. The cross ar 13. revents displacement of the convolutions of the spiral spring in one direction while the shoulder caused to be formed by the pintle 18 retains the convolutions in (place against displacement in the opposite irection.

Secured to the roller, as at 22, is a cur tain 23 constructed of any suitable mesh ma terial, such as brass wire fabric or silk gauze fabric, of a weave such as will permit of the entrance of air and at the same time preclude particles, such assand and the like, and insects, such as flies, bugs and mosquitoes. The lower end of the curtain or screen is provided with a transverse rod 24, the ends of which engage the guides which are secured in the channels of the jambs. The

ends of the rod 24 ride upon theoutstand ing flange and, when the curtain or screen is lowered to the desired. position, its ends may engage with certain of the opposite notches. In this manner, the curtain or screen may beheld in different adjusted positions, either lowered to the. bottom of the window or dis ed at any intermediate position between t e top and bottom-of the window. Whenthe screen or curtain is lowcred, the roller rotates against the action of the spiralsprin and when the ends of the transverse rod 0 the curtain are disengaged from the notches, the tension of the spring acts to raise the curtain and cause it to wind attached to the cylinder by p flange and {said other side of said channel,

on the roller. Theopposite edges of the'curtain or screen also operate in the guides sov V V l as to preclude insects from working their way to the interior of. the body of the automobile.

The invention having been set forth, what i is claimed is:

1; A slide guide'for a spring roll screen including, a channel member, an inwardly' entendin flange upon one side of said channel member, notch means upon said flange .for engaging a rod on the screen, said flange being spaced from the 0 en edges of said channel member to provide a .window pane slidin channel.

2. slide guide for a sprin roll screen including a-channel, an inward y extending flange on one side of said channel extending in close proximity to the other side thereof, a narrow screen rod channel between said the free edges on said channel member extending beyond said flange and rod channel to provide a window channel.

3. A slide guide for a sprin roll screen including a channel, an inwar y extending flange member on one side of said channel member, spaced from the open edges thereof to provide a window pane channel between said open edges, said flange extending toward the other side of said channel to provide a narrow screen rod channel, and notches in said flange to accommodate said 4.. A slide 'de for a spring roll screen including a c annel member, an inwardly extendin flange spaced from the open edges of said channel member on one side of said channel member to provide a screen rod channel and a window pane channel formed by the open edges of said channel member. 5. A slide gulde for a screen and window pane including a channel member, the open edges thereon forming a slide guide for a window pane a flange on one side of said channel mem r partially closing off the open side of said channel member, and a narrow scneen rod channel between said flange and the other side of said channel member ofi'set from the center of the window pane channel.

In testimony whereof he aflixes his signature. a

FREDRICK P. PRAWALSKY. 

